Shielding case

• US 6,011,700 A
• Filed: 12/01/1997
• Issued: 01/04/2000
• Est. Priority Date: 12/02/1996
• Status: Expired due to Fees

• Current Assignee: ALPS Electric Company Limited (Alps Alpine Co., Ltd.)
• Original Assignee: ALPS Electric Company Limited (Alps Alpine Co., Ltd.)
• Inventors: Matsuzaki, Satoru
• Primary Examiner(s): Picard, Leo P.
• Assistant Examiner(s): Gandhi, Jayprakash N.
• Application Number:
  US08/980,516
• Time in Patent Office: 764 Days
• Field of Search: 361/752, 361/800-802, 361/813-818, 334/85, 330/68, 174/35 R, 174/35 GC, 439/620, 439/687
• US Class Current: 361/816
• CPC Class Codes: H05K 9/006 specially adapted for signal processing applications, e.g. CATV, tuner, antennas amplifier

Abstract

A shielding case eliminates the problem in that the fixing portion of a feed-through capacitor juts out of the cabinet thereof; it does not affect the mounting conditions or the like of internal electronic components even if a part of the cabinet is bent inward to provide a portion on which the feed-through capacitor is mounted; and it enables automated assembly. The shielding case provides all the aforesaid advantages without sacrificing the shielding effect thereof. The shielding case is provided with: a printed circuit board (PCB) (31) which is housed and installed in a cabinet (28) constituted by a frame (23), a top cover (26), and a bottom cover (27); and a feed-through capacitor (29) which has one end thereof soldered to the PCB (31) and the other end thereof led out of the cabinet (28) and which has a fixing portion (36); wherein the top portion of one side surface of the frame (23) is bent inward to provide the side surface of the frame (23) with a horizontal plate portion (32), a mounting hole (33), through which the feed-through capacitor (29) is inserted and secured, is formed in the horizontal plate portion (32), and the edge portion of the PCB (31) is positioned under and opposed to the mounting hole (33) to expose an inserting hole (30) through the mounting hole (33) so as to insert the feed-through capacitor (29) in the mounting hole (33) to secure it.

Claims

1. A shielding case comprising:

a frame constituting the peripheral side surface of said shielding case such that it leaves the top and bottom thereof open;

a top cover and a bottom cover which are respectively fitted onto the top edge and the bottom edge of said frame and which respectively cover the top and bottom open sections of said frame;

a printed circuit board which is housed and installed in a cabinet constituted by said frame, said top cover, and said bottom cover and which is provided, in an edge portion thereof, with an inserting hole into which a core wire of a feed-through capacitor or a feed-through terminal is inserted; and

a feed-through capacitor or a feed-through terminal which has one end thereof soldered to said printed circuit board and the other end thereof led out of said cabinet, and which has a fixing portion secured to said cabinet;

wherein the top portion of one side surface of said frame is bent inward to provide the side surface of said frame with a horizontal plate portion, and a mounting hole is formed in said horizontal plate portion, and

an edge portion of said printed circuit board is opposed to said horizontal plate portion to expose said inserting hole through said mounting hole so as to insert said fixing portion of said feed-through capacitor or said feed-through terminal in said mounting hole to secure it.

2. A shielding case according to claim 1, wherein said frame is formed into a square shape, and a plurality of said mounting holes are formed over the entire width of said frame.